This passage comes from an article about Louis Armstrong by the Swiss jazz historian Johnny Simmen; the article appeared in a 1973 issue of CODA devoted to Louis. “Herman” is Herman Autrey, the trumpet star of Fats Waller and his Rhythm.
One night, in October 1961, a friend of Herman’s quoted some writer’s opinion about the present-day Louis Armstrong’s stage manners (which he disliked and qualified as being ‘Uncle Tom-ish’) and his playing (which he called ‘uncreative’ and being ‘a mere shadow of the Armstrong of the 20s’). My wife and I have often spoken of Herman’s reaction which was so impressive that we both haven’t forgotten either his facial expression–which became all threatening and tense–or the words that followed: ‘You better tell this guy to mind his own business and stop talking about things he doesn’t understand! Louis is the greatest artist and man that I know and as long as he chooses to stay in music, he will be unsurpassed!’ (The mother bear defending her baby bear couldn’t have been more involved than Herman putting things right concerning Pops.) We realized there and then that as much as Herman loved Fats, Louis Armstrong was even closer and meant even more to him. A most moving experience.”
Thanks to Ricky Riccardi for finding the source of this quotation, “a most moving experience,” indeed.